New developments in Pascal-SC

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New developments in Pascal-SC

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ACM SIGPLAN Notices archive
Volume 23 , Issue 8 (August 1988) table of contents

Pages: 83 - 92

Year of Publication: 1988

ISSN:0362-1340

Authors

G. Bohlender	Institut für Angewandte Mathematik, Universität Karlsruhe, Kaiserstr. 12, D-7500 Karlsruhe
Ch. Ullrich	Institut für Angewandte Mathematik, Universität Karlsruhe, Kaiserstr. 12, D-7500 Karlsruhe
J. Wolff von Gudenberg

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ACM New York, NY, USA

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ABSTRACT

PASCAL-SC is an efficient programming language for scientific computation which was developed at the beginning of the eighties as an extension of standard PASCAL. It provides arithmetical operations with controlled rounding and an optimal scalar product. Functions with arbitrary result type and an operator concept permit the realization of higher arithmetical operations, such as matrix-vector operations. The application of PASCAL-SC for the development of reliable numerical software raised several wishes for further extension. These extensions have been incorporated in the language.A new data type dotprecision together with arithmetic operations is introduced permitting scalar product expressions to be evaluated with maximum accuracy in a convenient manner. Dynamic arrays and a module concept support the definition of numeric libraries. Over loading of functions and procedures improve the readability of scientific programs. A program for the verified solution of linear systems illustrates the strength of the new language.

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	Henry Ledgard, Reference Manual for the ADA Programming Language, Springer-Verlag New York, Inc., Secaucus, NJ, 1983
	2	C. Bohlender, K. Grüner, E. Kaucher, R. Klatte, W. Krämer, U. W. Kulisch, S. M. Rump, Ch. Ullrich, J. Wolff von Gudenberg, W. L. Miranker: PASCAL-SC: A PASCAL For Contemporary Scientific Computation. Research Report RC 9009, IBM Thomas J. Watson Research Center, Yorktown Heights, N.Y., 1981.
	3	G. Bohlender, L. B. Rall, Ch. Ullrich, J. Wolff von Gudenberg: PASCAL-SC: Wirkungsvoll programmieren und kontrolliert rechnen. Bibliographisches Institut, Mannheim, 1986.
	4	Gerd Bohlender , Christian Ullrich , Jürgen Wolff von Gudenberg , Louis B. Rall, Pascal-SC: a computer language for scientific computation, Academic Press Professional, Inc., San Diego, CA, 1987
	5	Kathleen Jensen , Niklaus Wirth , P. Brinch Hansen , D. Gries , C. Moler , G. Seegmüller , N. Wirth , G. Goos , J. Hartmanis, PASCAL user manual and report, Springer-Verlag New York, Inc., New York, NY, 1974
	6	E. Kaucher, R. Klatte, Ch. Ullrich: Programmiersprachen im Griff, Band 2: PASCAL, Bibliographisches Institut Mannheim, 1981.
	7	U. Kulisch (ed.): PASCAL-SC Manual and System Disks. Teubner/ J. Wiley Stuttgart/ Chichester, to appear 1986.
	8	Ulrich W. Kulisch , Willard L. Miranker, Computer Arithmetic in Theory and Practice, Academic Press, Inc., Orlando, FL, 1981
	9	Ulrich Kulisch, A new arithmetic for scientific computation, Proc. of the symposium on A new approach to scientific computation, p.1-26, December 1983, IBM Thomas J. Watson Research Center, Yorktown Heights, New York, United States
	10	N. Wirth, Programming in Modula-2, Springer-Verlag Telos, 1983